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SOS brake & braking system questions and answers already graded A+ 2024/2025
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SOS brake & braking system questions and answers already graded A+ 2024/2025
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SOS brake & braking systemIn a single anchor bendix drum type rear brake - ANSthe secondary lining is longer than the
primary
Compared to the secondary shoe lining areas of drum brakes, the primary shoe lining area is: -
ANSsmaller and goes toward the front of the car
During a brake overhaul, you notice that the brake fluid seems to be very dirty and dark in color.
What should you do? - ANSflush the system before the new parts are installed
In order to bleed the system on a vehicle equipped with power brakes: - ANSNone of the above
Which of the following could be a symptom of over-torqued lug nuts? - ANSA brake pedal
pulsation during braking.
Which of the following describes the proper sequence to bleed brake lines on most rear wheel
drive vehicles: - ANSRR, LR, RF, LF
In disc brake caliper assemblies, the "square cut seal" is usually located: - ANSIn the caliper
piston bore
When performing a caliper overhaul, what would you use to remove the pistons from the
calipers? - ANSCompressed air
Sliding caliper disc brake pads are kept in adjustment by the - ANSSquare cut piston seal
A cracked or torn vacuum diaphragm in a power booster would likely cause: - ANSHard pedal
with very high effort required
When the brakes are applied on a car with disc-drum brakes, a vibration or pulsating movement
is felt. What can cause this problem? - ANSA rotor thickness variation
While test driving a car, the mechanic finds that the right front brake "grabs". The most likely
cause of this problem is: - ANSBrake fluid or grease on the brake linings.
During a road test, you find that when normal breaking pressure is applied the pedal slowly
goes to the floor. What is the likely cause of this problem? - ANSA leaking master cylinder
primary piston seal.
A rattle is a single piston disc brake assembly which goes away when the brakes are applied is
most likely a result of: - ANSLoose pads in the caliper
, Which of the following would most likely cause dragging brakes? - ANSA defective vehicle load
sensor
With the car standing still, you can hear a squeaking noise when applying the brake pedal
slowly. What could cause this noise? - ANSDry backing plate contact surfaces.
There is a scraping sound coming from one rear brake. The sound stops when the brakes are
applied. What is the likely cause of the problem? - ANSA broken shoe hold-down spring or pin
If a drum brake self-adjuster seizes up, the likely result will be: - ANSA low pedal
Which of the following can be used to check for rotor thickness variation? - ANSDial indicator
On a vehicle with a disc/drum brake system, the rear wheels lock up under hard braking. The
most likely cause is: - ANSA defective proportioning valve
After putting a bearing race in a hub, you notice that the new race is loose and can spin in the
hub. What should you do? - ANSReplace the hub
When adjusting disc-drum brakes, you should: - ANSAdjust the rear brakes after releasing the
parking brakes
What type of rotor surface provides the best braking with new pads? - ANSA smooth, flat
surface
Which of the following is a quick way to determine whether the master cylinder is bad? There
are no external leaks in the system. - ANSPump up the brake pedal, then hold it firm. If the
pedal slowly drops to the floor, the master cylinder is bad.
You are rebuilding a master cylinder. What should you use to lubricate the internal parts? -
ANSBrake fluid
Which of the following is the most likely cause of low fluid level in the master cylinder? -
ANSWorn brake pads and linings
After drum brakes have been applied and released, the brake fluid returns to the master cylinder
reservoir. What causes it to return? - ANSBrake shoe return springs
Which of the following describes the correct sequence for bleeding brake lines on most front
wheel drive vehicles? - ANSRR,LR, RF, LF
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